scholarly journals Cost of hydrogen production with using the share of electricity from a wind power plant in Ukraine

2021 ◽  
Vol 2021 (1) ◽  
pp. 45-51
Author(s):  
N.P. Ivanenko ◽  
◽  
P.V. Tarasenko ◽  
Keyword(s):  
Renewable Energy ◽  
Hydrogen Production ◽  
Wind Power ◽  
Average Cost ◽  
Renewable Energy Sources ◽  
Weighted Average ◽  
Water Electrolysis ◽  
Electricity Production ◽  
Energy Sources ◽  
Wind Power Plant

To ensure the balance reliability of regimes of UES functioning, it was necessary to apply restrictions on generation from renewable energy sources (RES). In this regard, a number of amendments was made in 2020 to the Law of Ukraine "On the Electricity Market" dated April 13, 2017 No. 2019-VIII, which provide for reduction of the rates of the "green" tariff for renewable energy projects. CJSC NEC "Ukrenergo" predicts limitation of electricity production from renewable sources against the background of their growing capacity and falling consumption – up to 1 billion kW∙h. The total volume of electricity production from renewable energy sources in 2019 was about 4.5 billion kW∙h. One of the most efficient ways to use excessive electricity is producing hydrogen. Hydrogen has been successfully used as a raw material for many years. The total estimated value of the hydrogen feedstock market is $ 115 billion, and it is expected only to grow, reaching $ 155 billion by 2022. Hydrogen is widely used at present in various industries and sectors. It should be noted separately that the use of hydrogen instead of natural gas does not lead to increasing greenhouse gas emissions and favors the decarbonization of economy. In addition, the by-product of electrolysis is purified oxygen, which is currently relevant. The cost of hydrogen generated with the use of renewable electricity is typically $ 2.5–6.6 / kg of hydrogen. The most well-known technological options for producing hydrogen from RES are water electrolysis and steam reforming of biomethane / biogas with or without carbon capture and use / storage. The purpose of this paper was to estimate the weighted average cost of hydrogen in Ukraine at the expense of RES electricity, in particular, produced by a wind power plant with using water electrolysis. We developed an algorithm for calculating the weighted average cost of hydrogen production using wind power plants for the conditions of Ukraine, taking into account the determination of installed capacities of the battery, electrolyzer, and distiller. According to the calculation results, the weighted average cost of hydrogen production was about US $ 5.1 / kg of hydrogen. Keywords: hydrogen production, renewable energy sources, wind farm, weighted average cost. mathematical model, storage, electrolyzer

scholarly journals From Renewable Energy to Renewable Fuel: A Sustainable Hydrogen Production

2020 ◽  
Vol 3 (2) ◽  
pp. p49
Author(s):  
Rafiq Mulla ◽  
Charles W. Dunnill
Keyword(s):  
Renewable Energy ◽  
Hydrogen Production ◽  
Renewable Energy Sources ◽  
Supply And Demand ◽  
Water Electrolysis ◽  
Energy Sources ◽  
Low Carbon ◽  
Renewable Fuel ◽  
The Past ◽  
Recent Developments

Hydrogen, a zero-emission fuel and the universal energy vector, can be easily produced from many different energy sources. It is a storable, transportable product that can be used on demand to overcome supply and demand imbalances. As of today, most of the hydrogen produced comes from natural gas; the production process itself is in fact not so pollution free. As the world is looking for a low carbon future, researchers have therefore been looking for more sustainable, environmentally friendly pathways of hydrogen production by using renewable energy sources such as solar and wind. Among the different methods, water electrolysis is a conventional and promising method of hydrogen production if renewable energy sources are to be employed in the process. Lots of progress has been made over the past few years in extending the use of hydrogen in different sectors. This perspective article briefly covers the recent developments in the hydrogen fuel-based projects and technologies and provides a description of the advantages of employing renewable energy sources for sustainable hydrogen production.

scholarly journals Towards 100% Renewables by 2030: Transition Alternatives for a Sustainable Electricity Sector in Isla de la Juventud, Cuba

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2862
Author(s):  
Mika Korkeakoski
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Electric Power ◽  
Renewable Energy Sources ◽  
Electric Power System ◽  
Electricity Production ◽  
Energy Sources ◽  
Cuban Government ◽  
Isla De La Juventud ◽  
Near Future

Renewable Energy Sources (RES) have become increasingly desirable worldwide in the fight against global climate change. The sharp decrease in costs of especially wind and solar photovoltaics (PV) have created opportunities to move from dependency on conventional fossil fuel-based electricity production towards renewable energy sources. Renewables experience around 7% (in 2018) annual growth rate in the electricity production globally and the pace is expected to further increase in the near future. Cuba is no exception in this regard, the government has set an ambitious renewable energy target of 24% RES of electricity production by the year 2030. The article analyses renewable energy trajectories in Isla de la Juventud, Cuba, through different future energy scenarios utilizing EnergyPLAN tool. The goal is to identify the best fit and least cost options in transitioning towards 100% electric power systemin Isla de la Juventud, Cuba. The work is divided into analysis of (1) technical possibilities for five scenarios in the electricity production with a 40% increase of electricity consumption by 2030: Business As Usual (BAU 2030, with the current electric power system (EPS) setup), VISION 2030 (according to the Cuban government plan with 24% RES), Advanced Renewables (ARES, with 50% RES), High Renewables (HiRES, with 70% RES), and Fully Renewables (FullRES, with 100% RES based electricity system) scenarios and (2) defining least cost options for the five scenarios in Isla de la Juventud, Cuba. The results show that high penetration of renewables is technically possible even up to 100% RES although the best technological fit versus least cost options may not favor the 100% RES based systems with the current electric power system (EPS) setup. This is due to realities in access to resources, especially importation of state of the art technological equipment and biofuels, financial and investment resources, as well as the high costs of storage systems. The analysis shows the Cuban government vision of reaching 24% of RES in the electricity production by 2030 can be exceeded even up to 70% RES based systems with similar or even lower costs in the near future in Isla de la Juventud. However, overcoming critical challenges in the economic, political, and legal conditions are crucially important; how will the implementation of huge national capital investments and significant involvement of Foreign Direct Investments (FDI) actualize to support achievement of the Cuban government’s 2030 vision?

scholarly journals Analysis of Solar and Wind Power on Access Planning of Multiple Renewable Energy Sources

2021 ◽  
Vol 621 ◽  
pp. 012069
Author(s):  
Jiong Yan ◽  
Zi-xia Sang ◽  
Si-cong Wang ◽  
Zhi Du ◽  
Jia-qi Huang ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Wind Power ◽  
Renewable Energy Sources ◽  
Energy Sources

THE ROLE OF RENEWABLE ENERGY SOURCES IN REGIONAL TOURISM DEVELOPMENT

2009 ◽  
Vol 15 (1) ◽  
pp. 25-36
Author(s):  
Branko Blazevic
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Wind Power ◽  
Geothermal Energy ◽  
Renewable Energy Sources ◽  
Biomass Energy ◽  
Energy Sources ◽  
Regional Tourism ◽  
Regional Sustainable Development

In this paper, the author focuses on the fundamental hypothesis that the adoption of a concept of regional sustainable development and the use of renewable energy sources are preconditions to organising an acceptable regional tourism offering based on an eco-philosophy The renewable development of tourism regions is the basic framework for research regarding opportunities for introducing renewable energy sources such as hydro energy, wind power, solar energy, geothermal energy, and biomass energy. The purpose of this paper is to indicate the real opportunities that exist for substituting conventional energy sources with renewable ones and the role of renewables in regional development from economic, environmental and sociological viewpoints. It should also be noted that renewable energy sources have a strong regional importance and can contribute significantly to local employment.

scholarly journals Development of an operation strategy for hydrogen production using solar PV energy based on fluid dynamic aspects

2017 ◽  
Vol 7 (1) ◽  
pp. 141-152 ◽  
Author(s):  
Ernesto Amores ◽  
Jesús Rodríguez ◽  
José Oviedo ◽  
Antonio de Lucas-Consuegra
Keyword(s):  
Hydrogen Production ◽  
Fluid Dynamic ◽  
Renewable Energy Sources ◽  
Water Electrolysis ◽  
Weather Conditions ◽  
Energy Sources ◽  
Electrolysis Cell ◽  
Operation Strategy ◽  
Solar Pv ◽  
Alkaline Water Electrolysis

AbstractAlkaline water electrolysis powered by renewable energy sources is one of the most promising strategies for environmentally friendly hydrogen production. However, wind and solar energy sources are highly dependent on weather conditions. As a result, power fluctuations affect the electrolyzer and cause several negative effects. Considering these limiting effects which reduce the water electrolysis efficiency, a novel operation strategy is proposed in this study. It is based on pumping the electrolyte according to the current density supplied by a solar PV module, in order to achieve the suitable fluid dynamics conditions in an electrolysis cell. To this aim, a mathematical model including the influence of electrode-membrane distance, temperature and electrolyte flow rate has been developed and used as optimization tool. The obtained results confirm the convenience of the selected strategy, especially when the electrolyzer is powered by renewable energies.

scholarly journals IMPACT OF PHOTOVOLTAIC POWER PLANTS ON THE OVERALL ELECTRIC POWER SYSTEM OF THE REPUBLIC OF MACEDONIA

2013 ◽  
Vol 4 (2) ◽  
Author(s):  
Aleksandra Kanevče ◽  
Igor Tomovski ◽  
Ljubčo Kocarev
Keyword(s):  
Renewable Energy ◽  
Electric Power ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Electric Power System ◽  
Electricity Production ◽  
Energy Sources ◽  
Republic Of Macedonia ◽  
Photovoltaic Power ◽  
The Republic

In this paper we analyze the impact of the renewable energy sources on the overall electric power system of the Republic of Macedonia. Specifically, the effect of the photovoltaic power plants is examined. For this purpose we developed an electricity production optimization model, based on standard network flow model. The renewable energy sources are included in the model of Macedonia based on hourly meteorological data. Electricity producers that exist in 2012 are included in the base scenario. Two more characteristic years are analyzed, i.e. 2015 and 2020. The electricity producers planned to be constructed in these two years (which include the renewable energy sources) are also included. The results show that the renewable energy sources introduce imbalance in the system when the minimum electricity production is higher than the electricity required by the consumers. But, in these critical situations the production from photovoltaic energy sources is zero, which means that they produce electricity during the peak load, and do not produce when the consumption is at minimum.

scholarly journals Renewable energy development in Hungary

2012 ◽  
pp. 73-77
Author(s):  
Orsolya Nagy
Keyword(s):  
Renewable Energy ◽  
Energy Production ◽  
Energy Use ◽  
Renewable Energy Sources ◽  
Electricity Production ◽  
Energy Sources ◽  
The European Union ◽  
Fuel Prices ◽  
The Earth ◽  
Renewable Energy Development

Due to the exhaustion of the fossile fuel reserves of the Earth, the increase of fossile fuel prices and the difficulties concerning stable fuel supply, the increase of electricity production from renewable energy sources has a special strategic importance. In this study, I am going to evaluate the circumstances of the production and use of renewable energy sources in Hungary and in the European Union. I present the Hungarian economic, energy policy-related and social circumstances which make it necessary to support renewable energy production. I am going to give an overview on the related EU strategies concerning the sector and the Hungarian development plan in this field. I pay particular attention to the examination of development opportunities and the R&D activities going on in this area in Hungary, as well as the efficiency of the means used to improve renewable energy use.

scholarly journals Produkcja energii elektrycznej ze źródeł odnawialnych w krajach Unii Europejskiej i w Polsce w kontekście koncepcji zrównoważonego rozwoju

2017 ◽  
Vol 17(32) (2) ◽  
pp. 126-135
Author(s):  
Łukasz Kozar
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Electricity Consumption ◽  
Data Bank ◽  
Electricity Production ◽  
Energy Sources ◽  
Local Data ◽  
Renewable Sources ◽  
Regional Aspect ◽  
The Eu

The article presents changes that occurred in the production of electricity from renewable energy sources in the EU-28 and in Poland in the years of 2010-2015. The analysis of the changes was based on the data from Eurostat and the Local Data Bank. Based on the indicator of the share of electricity generated from renewable sources in gross electricity consumption, Poland in the period under discussion, was characterized as one of the highest dynamics of change among all EU countries. In addition, the article analyzes the situation concerning the production of electricity in Poland in the regional aspect. From the taken analyzes, it is clear that in all voivodeships, apart from Małopolskie voivodeship, in 2015, more electricity was produced from renewable sources compared to 2010. In the period under discussion, the share of electricity production from renewable sources in total electricity production also increased by 99% in Poland.

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